check engine on 2002 Isuzu Trooper

what is code p-1870 no dtc?

by in Northern Cambria, PA on May 19, 2011
1 answer
ANSWER by on May 19, 2011
this is a transmission fault; here's some info: Range switch malfunction could set a DTC P1870. A mechanical failure of the shift solenoids, TCC solenoid, or TCC PWM solenoid could set a DTC P1870. Internal transmission failures may set a DTC P1870. An intermittent or incorrect engine speed signal may set a DTC P1870. there are several tests a shop can run to identify the cause. definitely not a DIY repair.
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